Global air pollution persists as leading health risk, hitting Asia and Africa the hardest

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U.S. Rep. Alexandria Ocasio-Cortez is considering a run to lead Democrats on the House Oversight Committee as younger members of the party seek to oust aging committee leaders.  The New York Democrat may be looking to replace Rep. Jamie Raskin, D-Md., if he vacates his seat to challenge Rep. Jerry Nadler, D-N.Y., for the top […]